Electric laundry-iron.



E.' n. ncHAnnsoN. HLBOTBIO LAUIDBY IRON. APPLIUAI'IDI FILED DBO. I. 1901. 900,208. Patented oen 6,1908.

.u A ll-ll through the .of the UNITED STATES' PATENT oFF-ion RL H. RGIARDSOE, OF ONTARIO, CALIFORNIA, ASIGNQR TO PACIFIC ELECTRIC HATIN G COMPANY, OF ONTARIO, CALIFORNIA, A CORPORATION OF CALIFORNIA..

:insomnio LAUNDRY-IRON.

Spedeation .of Letters Patent.

Patented Oct. 6, 190B.

mammina number a, im. su-m m. mais.

Be a known that I H. Mmmm,

a citizen ef the Unitedstates, resida n 866,810, issued Septein er 24, 190?, andthe"V `objects of the present` invention are to4 im-V prove the.;constructon'.

Thef'dis inguishing feature of the present applicati n consists in' providin'gmeans for automatically; breakingthe electric circuit the temperature-o the iron rises to,'a certain oint, whereby electricity is conserved and anlage from overheatin avoided."

The automatic circuit opening device employed consists of a thermic fuse, and one of the main points of novelty and advantages resent construction over the former is that instead of securing the fuse supports to the lower member of the laund iron, I mount the saiueindependently of t e lower member and of the cover; and instead of mounting the terminals, which are brought into contact with the terminals, on the cover, I mount them o'n the lower member, whereby the covercarries none of the inteiior parts of the iron and may be readily removed 'without disturbingr any of the interior mechanism of the iron, and the insection or renewal of parts may thus be e ected with greaterease and rapidity.

In the former construction, in order to secure perfect connection through-the fuse or fuses, it was Anecessary to accurately place the cover inexact position onthe lower member of the iron, and to secure such ac. curate position a specialconstruction was necessary, which is avoidcdinthe present construction, and thecovermay be screwed 4or, otherwise .fastened to the lower member without requiring any greater nicety of fit than .is consistent with the grade of construction desired.

Another object is to so mount the fuse and its support that it may, upon 'removing the cover, e removed at once from the interior of the iron.

Another object is to employ but a Asingle atin element of the iron when' use,'while in the former case two fuses were enloyed. y

ther-objects and advantages relate to details-of construction which will be herein pointed out Referringto the drawings t--Figure l is a p lan View of the laundry iron with the cover removed. Fi V2 is a ngitudii'ial vertical cross section t rough the laundr iron. with the cover in place, on line w2-m2 il l..

fuse support. ,Fig 4 is a cross section through a heating unit on line .mb-m4 of d'esignates the lower member of the iron which is formed hollow as shown, with lower heatin wall or sole, and provided in the`toe wit i iin-extra metal portion 2, and

in each heel corner with extra metal por tions 3. .The toe ortion 2 is provided with.

t-wo vertical circu ar cavities, and each heel portion 3 is provided with a single vertical circular cavity, and two heating units 4 are angularly' disposed diver-ging toward the rear, theirfront'ends being in the cavities in the toe portion 2 and their rear ends be- 'ing in the respective cavities in the heel corners' 3. Each heating unit 4 comprises a Fig. 3 is a perspective in detail of the fuse and central core 5 formed preferablyof a good heat conducting material such as copper, each core having ton ies 6 which project lich are snu ly seated inthe cavities referred to. The pings 7 are also preferably formed of rood heat conducting material and as indicated in Fig. 4 the upper end of each plug 7 is u set to lap over the upper edge o the a jacent tongue 6 of the core 5 so that the cores are Vthus securely held inposition, the ton Anes being wed ed between the members o each plug in a dition to the upper ends of the lugs being hammered ver the ton nes. ica 8 is wound over each wre 5- an resistance wire Sis then coiled around over the mica 8, with its-coils separated to prevent short4 circuitin As shown in Fig. 4, the

vheating unit t us formed i's substantially triangular in cross section, and its lower flat face rests upon a strip of mica 10 laid next to the lower member 1, the mica 10 keepin" the wire 9 out.of contact with the metal forming the lower member -1. While the heatn uniti 4 are thus ri 'dly and rmly may readily be removed, if desired, by

ics

secure in position, it is o vious that they transverse mica sheets 16, and the body por# tion of mica sheets are slotted to permit the wires 11 and 12 to pass therethrough.

'Arran ed within the `fuse receptacle thus forme is a fuse support com rising a table 17 having two downturned anges 18 and tapering edges 19 which permit the table to fit the slanting side wall of the mica sheets 15. Two terminals 2() and 21 are mounted on the table 17, each comprising a central bolt 22 which passes through an enlarged perforation 23 inthe table 17 so that the shank of the bolt does not come in contact with the table. Inter osed between the head of the bolt and t e underside of the table is a micaivasher 24. A mica washer 25 is arranged above the table'l-T and a metal washer 26 is above the mica washer 25,.there being a nutI 27 screwed onbolt 22 Aabove washer 2G, and a washer 2S above nut.

the other Wire 12 being similarlyl fastened to` terminal 21.

l Above washer 28' is a nnt 29, and extending between the two terminals 20 and 21 above nuts 29 is a thermic fuse com- ,plete-ly housed from the other parts of-.the iron bv the mica sheets 1 5 and 16 and b the mica layer 39 which is snrmounted y a thick asbestoslayer 32 above which is a cover 33, the lat-ter being secured -to `the lower portion'lv of the ironi by screws 34'.

It will be noted that the lcircuit between wires 11 and 12 is completed through the fuse 30. The rear wires from each' unit 4' areoonneeted to terminals 35 and` 36 which project through the rear wall 3 7'of the 1 ower member 1, `the terminals 35 and 36 belng provided with tongues4 38', to-whichfa connection plug, not shown, is 'attached when'the iron is to be used.

'By removing the cover-33 and the sheet of mica 39, allthe parts of the iron are exposed as shown in Fig. 1, thereby permitting ready inspection of the parts and re lacement of thel same when' necessary. Sliould the fuse :L50 melt, the -metal therefrom vis -kept witlnn the fuse receptacle formed of the mica shts 15 and 16m-nd thus cannot come in contact with -the wire of the heat` '-ha'ving inclined sides fittin ing units.- The fuse support, term'nals', and fuse, shown in Fig. 3, are unattached to the bodyof the iron, the table 17 merely resting upon the bottom member 1, being firmly held in position, when the top is on, by the pressure of the top and intervening strips 31 and 32 upon the tops of terminals 20 and 21. Therefore, when the cover is removed, thc'fuse support with its terminals and the fuse may be lifted out of the iron and a new fuse or other parts substituted Without disturbing the other parts of the iron.

It will be seen that the fuse is perfectly supported and kept in place, closing the circuit between wires 11 and 12 irrespective of the exact position of the cover of the iron. This feature is also of great advantage in mamlfacturing, as the fuse support and its )arts may be easily assembled without havmg to fit the other parts of the iron thereto.

'h'at .l claim ist 1. A member having a heating surface, an electrical heating unit within the member, a, thermic fuse in circuit with the heating unit, and a 'fuse support unattached to thc'niember andsnpportingi the fuse.

2. An electric laundry iron comprising two members, a heating unit between the members, a thermic fuse in circuit with the heatilw unit and a fuse su i )ort unattached to the members and supporting the fuse.

'3. An electric laundry iron eomprlslng two members, a heating unit between the members, .a thermlc fuse 1n clrcult with the.

heating unit, and a fuse support unattached to the members and supporting the fuse, the

two members when in place firmly pressing the fuse support between them to hold it in place.

4, A member having a heating surface, a electrical heating unit within the member, a thermic fuse in circuitwith the heating unit,

4a fuse support unattached to the member and supporting thefuse, and a fuse receptacle of non-conducting material inclosing the fuse and its. support.

5. In an electrically heated device, a member having a recess, a cover therefor, a pair of electrical lheating units in the recessed member, a fuse support between the heating units, and a thermic fuse on said support and connected to the heating units.

6. In an electric laundry iron, a body, a Y

.pair of angularly 4disposed heating units therein divergmg rearwardly, a fuse support heating units,Y and a thermic use on the fuse support connected in circuit with the heating l units.

between the member, a'fpar in' wiigll, anda therinicfuse in circuit wit heati comme of' electrical heating unite therein, a support coiiiprising' a table resting on the member, bindin posts on the table, a fuse-between the bin ing posts, one bindin post being connected to one heatin unit, e other binding post being connecte to the other heatin unit.

' 9.V In an electrica heating unit, a member having a heating wall, an electrical heating 7 .unit Within the member for heating' the will and a thcrmic fuse comprisin a' thin' flat-l platc in circuit with the heating-unit and close .to and. parallel 'with the heati ng wall.

, l0. In an electrical heating device, a 1nem ber having a heating wall, an electrical heatunit within the member for lieati the n the unit, there -bein a. Vfree air 4space aroun both faces 'of thev y se.

l 11. In an electric laundry iron, a recessed member, an electrical heating means therein,

removable cover for therecessed -member, binding posts on the recessed member in circuit with the heating means, other binding posts in the recessedmember in circuit wit the heati means, and a'thermic fuse,

' tween the atter binding osts.

. 12. In an electric laiin ry iron, a member, an electrical heating means therein, binding posts on the member in circuit with t'he heating means, other bindingiposts inI the member'in circuit with the heatin means, f

a thermic fuse `between the latter inding posts, and a table, within the member sup-A portin the latter bindin posts.

n an, electric la'iin ry iron, a recessed' i member, means therein, binding poste on the' member in circuit with the beating means, other binding sts in the member in circuit -with the heating means, a thermic fuse between the latter binding4 posts, and a cover detachably secured to sui member and unattached to the other elements.

' 14: In anelectric-landry iron, a recessed member, an electrical heating means therein,

binding posts on the member in circiiit'with the heating means, other binding posts inthe member iii circuit with the heating means, a

tliermic fuse between the latter binding posts,

a cover4 detachably secured to saidmember and unattacli'ed tofthe other elements, and 'a I liningoff ynoir-conducting material at the inner surface" of the cover and the-,to s of the latter binding posts. `15. n an electric laundry iron, a recessed member with a` rear wall, a.A air of binding` posts secured -to the rear wal and therethrough, a pair o f electrica heatin units within' the member in circuit with said binding'rv posts, `a fuse sup rt between the lieatin vunits andA forwarcixhf said binding posts, binding-posts on the fuse' sup rt in fuse between the latter bindingposts.

vIn testimony whereof, Ihave hereunto set projecting i pressing on e heating units, and a t erinic` my hand at Los Angeles California this 9th day of November 1307.

In presenceofg GEORGE' T. HACKLEY,

FRANK L. A. Gminnrqi,

EARL H j Rioiiiiiinson, 

